Where and how to edit or create Reforged models?

[gritpatrick]

Been looking around the internet and i cant seem to find a editor for the life of me.
Ive seen some reforged units in the hive shop and im just wondering how on earth did they manage to create thos models? is there a editor i dont no about?

 

[Warseeker]

I think they were made with Retera Model Studio Reforged Hack